This work aims to investigate the influence of patients' gender on the repartition of cancer types and on death according to cancer types. It consists in a retrospective study based on 3915 cases of males and females common cancers, diagnosed and treated in Al Azhar oncology centre of Rabat between 1994 and 2004. Results showed that males display a significantly higher risk for cancer of larynx, lung and bladder, with relative risks of 5.5, 4.5 and 2.3 respectively, whereas females have a significantly higher risk for thyroid cancer, with a relative risk of 6.3, and cancers of gall bladder, liver, bone, colon-rectum, Hodgkin lymphoma, soft tissue and non Hodgkin lymphoma. As far as death is concerned, gall bladder cancer displays a death risk 4 times higher in men. Also, non Hodgkin lymphoma and larynx cancer in men are significantly associated with death, then they constitute risk factors of death in men. On the other hand, cutaneous cancers and bone cancers show higher death risk in women, with relative risks of 2.5 and 2.4 respectively. Nevertheless, we found no significant association between cancer type and death in females. In conclusion, anti-cancer strategies in Morocco and elsewhere should take into consideration the gender difference in cancer risk and death risk for common cancers, and fit their priorities to the gender of target population.